[{"title":"( 3 个子文件 291KB ) LM1875功放板pcb图","children":[{"title":"lm1875","children":[{"title":"20W_Amp_Schematic.jpg <span style='color:#111;'> 58.88KB </span>","children":null,"spread":false},{"title":"untitleda.png <span style='color:#111;'> 76.84KB </span>","children":null,"spread":false},{"title":"untitledqw.png <span style='color:#111;'> 163.83KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]